Buttress assembly of an oval swimming pool



FIG. 1 is a perspective view of a buttress assembly of an oval swimming pool;

FIG. 2 is a top plan view of the buttress assembly of an oval swimming pool;

FIG. 3 is the opposite side view of the perspective view of a buttress assembly of an oval swimming pool; and

FIG. 4 is a rear elevation view of the buttress assembly of an oval swimming pool. 

The ornamental design for a buttress assembly of an oval swimming pool, as shown in the drawing. 